[go: up one dir, main page]

WO2011016784A2 - Dispositif d'ostéogenèse par distraction à ancrage frontozygomatique - Google Patents

Dispositif d'ostéogenèse par distraction à ancrage frontozygomatique Download PDF

Info

Publication number
WO2011016784A2
WO2011016784A2 PCT/SY2010/000002 SY2010000002W WO2011016784A2 WO 2011016784 A2 WO2011016784 A2 WO 2011016784A2 SY 2010000002 W SY2010000002 W SY 2010000002W WO 2011016784 A2 WO2011016784 A2 WO 2011016784A2
Authority
WO
WIPO (PCT)
Prior art keywords
segments
distraction
bone
maxillary
screws
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/SY2010/000002
Other languages
English (en)
Other versions
WO2011016784A3 (fr
Inventor
Mohammed Aii Abbas Alkasem
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO2011016784A2 publication Critical patent/WO2011016784A2/fr
Anticipated expiration legal-status Critical
Publication of WO2011016784A3 publication Critical patent/WO2011016784A3/fr
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
    • A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements for external osteosynthesis, e.g. distractors, contractors
    • A61B17/66—Alignment, compression or distraction mechanisms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
    • A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements for external osteosynthesis, e.g. distractors, contractors
    • A61B17/64—Devices extending alongside the bones to be positioned
    • A61B17/6433—Devices extending alongside the bones to be positioned specially adapted for use on body parts other than limbs, e.g. trunk or head

Definitions

  • Distraction osteogenesis is a surgical technique for generating new bone by gradually separating two viable bone segments .
  • the process involves creation of an osteotomy site while maintaining the integrity of the periosteum.
  • the two bone segments are gradually separated, allowing a callus to form within the osteotomy site.
  • osteoid tissue is deposited that eventually forms stable, viable, new bone.
  • distraction osteogenesis causes a simultaneous expansion of the functional soft tissue matrix, which includes blood vessels, nerves, mucosa, fascia, skin, ligaments, cartilage, and periosteum.
  • the concomitant change of the surrounding soft tissue generated by the distraction forces applied to bone is called distraction histogenesis .
  • FIG 1 The concomitant change of the surrounding soft tissue generated by the distraction forces applied to bone is called distraction histogenesis .
  • the consolidation period, following active distraction, represents the period of rigid fixation allowing for adequate consolidation and maturation of the bony callus.Consolidation periods of 2 to 3 months were reported for maxillary and midfacial distraction cases
  • Maxillary advancement in patients with cleft palate includes maxillary osteotomy and miniplate fixation, along with interpositional bone grafting.
  • Newly formed bone can provide good support and thus contribute to stability.
  • Disadvantages of autogenous bone grafting include potential donor site morbidity, resorption, and infection of the bone graft with a tendency to relapse caused by decreased bone support of the maxilla after resorption or infection.
  • distraction osteogenesis provides an alternative method for maxillary advancement in patients with a great tendency to relapse, such as cleft palate patients.
  • Rachmiel et al in an experimental study on noncleft adult sheep, advanced the maxilla 40 mm by distraction osteogenesis with only 7% relapse during 1 year of follow- up.
  • a Histologic studies have shown formation of mature lamellar bone by distraction osteogenesis. This mature lamellar bone generated in the distraction site between the 2 bony segments may help to prevent relapse.
  • Distraction osteogenesis can provide an alternative method for maxillary advancement in patients with a tendency to relapse, such as cleft palate patients.
  • the literature shows that patients who had distraction osteogenesis were younger than those who had orthognathic surgery. The amount of advancement was significantly greater in distraction cases as compared with conventional osteotomy.
  • halo device The use of the halo device in children is especially associated with a significantly high complication rate. Children are more prone to such complications because their skulls are softer, thinner, and more fragile and children are more active than adults. Dormans et al. reported complications of halo in 37 children and found an overall complication rate of 68%. Baum et al. found major problems in 5 of 13 children.
  • Aizenbud and Rachmiel 0.5 cm intracranial pin penetration postoperatively and predistraction.
  • distraction osteogenesis provides an alternative method for maxillary advancement in patients with a great tendency to relapse, such as cleft palate patients.
  • the rigid external distraction (RED) system is the most common external distraction device for the advancement of severe retrusive maxilla especially in cleft palate patients.
  • RED device 4- The use of RED device is accompanied by many complications and risks. Review of the literature on complications of the use of halo revealed that most complications are pin related. Complications with the use of RED have mainly included the penetration of intracranial pins. Risk management and preventive considerations propose several modifications to prevent the side effects when using RED , that was our invention which anchored on zygomatic bones and attached to frontal bone , which called frontozygomatic external anchored distractor(F-ZED).
  • F-ZED frontozygomatic external anchored distractor
  • zygoma anchored stage (ZED):In this device we encountered a problem that draw down the level of the device specially for children, which reduce the effectiveness of traction in advancing the maxilla.
  • Fig 4 Second frontozygomatic anchored stage (F-ZED). In this device we attached the anterior part of the device to a screw retained in nasion (frontonasal suture ) which increase the device supported .
  • FIG 5 zygoma anchored stage
  • Main frame This is made up of five mobile an adjustable distractor segment :- a- Fixed segments : they are two segments (right& left) which are in turn fixed to zygomatic bone by two titanium fixation screws on each side.
  • b- Adjustable segments they are two segments (right&left) which hold between the fixed segments and intermediate segment there are more than one measures of this segments to adapt to variation faces.
  • c- Intermediate segment one segment which fixed the vertical bar , and attached to frontal bone by wire.
  • 2- Vertical bar one vertical bar which holds between the main frame and the traction unit .
  • a transpalatal bar can be added to increase rigidity.
  • Adjust transverse dimension of the F-ZED by choosing suitable measure of an adjustable segments . Lock the fixed segments into the desired position. There should be approximately 1-2 cm distance between the inner aspect of the F-ZED and the surface of the skin.
  • F-ZED was removed without any anesthesia or under local anesthesia. Removal of the F-ZED was performed by simply loosening the titanium screws on both sides of the F-ZED until it can be gently removed away from the face.
  • F-ZED device is cheaper than RED so it is suitable and available choice for Syrian and Yemeni people .

Landscapes

  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Medical Informatics (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

L'invention concerne un dispositif à ancrage sur os zygomatique par vis de traction de chaque côté et à fixation sur os frontal par vis unique. La traction est appliquée sur les maxillaires par la dentition au moyen d'une attelle intraorale rigide. Le dispositif comprend: un cadre principal réglable qui comprend cinq segments, une barre verticale, des unités de broche, des vis de distraction.
PCT/SY2010/000002 2009-08-06 2010-01-26 Dispositif d'ostéogenèse par distraction à ancrage frontozygomatique Ceased WO2011016784A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SY820909 2009-08-06
SY8209 2009-08-06

Publications (2)

Publication Number Publication Date
WO2011016784A2 true WO2011016784A2 (fr) 2011-02-10
WO2011016784A3 WO2011016784A3 (fr) 2013-03-07

Family

ID=43544818

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SY2010/000002 Ceased WO2011016784A2 (fr) 2009-08-06 2010-01-26 Dispositif d'ostéogenèse par distraction à ancrage frontozygomatique

Country Status (1)

Country Link
WO (1) WO2011016784A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3027791A1 (fr) * 2014-11-03 2016-05-06 Yoomed Dispositif d'induction ou de correction de la croissance mandibulaire.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5890891A (en) * 1998-05-15 1999-04-06 Rmo, Inc. Reverse pull, extraoral dental assembly with head and body supports and chin stop
US6726479B2 (en) * 2002-01-22 2004-04-27 Timothy J. Tremont Method and apparatus to assist in orthognathic surgery
US7011642B2 (en) * 2003-04-07 2006-03-14 Kls-Martin, L.P. External fixation device for cranialmaxillofacial distraction
US7485121B2 (en) * 2004-05-04 2009-02-03 Synthes (Usa) Midface distractor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3027791A1 (fr) * 2014-11-03 2016-05-06 Yoomed Dispositif d'induction ou de correction de la croissance mandibulaire.
WO2016071585A1 (fr) * 2014-11-03 2016-05-12 Yoomed Dispositif d'induction ou de correction de la croissance mandibulaire
CN107106214A (zh) * 2014-11-03 2017-08-29 悠梦得公司 用于诱导或校正下颌骨生长的装置

Also Published As

Publication number Publication date
WO2011016784A3 (fr) 2013-03-07

Similar Documents

Publication Publication Date Title
Rachmiel et al. Long-term results in maxillary deficiency using intraoral devices
Fearon The Le Fort III osteotomy: to distract or not to distract?
Wolfswinkel et al. Management of pediatric mandible fractures
Rachmiel et al. Surgically-assisted orthopedic protraction of the maxilla in cleft lip and palate patients
Chrcanovic et al. Orthodontic or surgically assisted rapid maxillary expansion
Barodiya et al. Self-tapping Intermaxillary Fixation Screw: An Alternative to Arch Bar.
Guerrero et al. Intraoral distraction osteogenesis: maxillary and mandibular lengthening
Garreau et al. Symphyseal distraction in the context of orthodontic treatment: a series of 35 cases
Blitz et al. Closed reduction of the mandibular fracture
Bouletreau et al. Surgical correction of transverse skeletal abnormalities in the maxilla and mandible
Walker Part two: Management of severe mandibular retrognathia in the adult patient using distraction osteogenesis
Blumen et al. Maxillomandibular advancement for obstructive sleep apnea syndrome
Van Sickels et al. Complications in orthognathic surgery
WO2011016784A2 (fr) Dispositif d'ostéogenèse par distraction à ancrage frontozygomatique
Abbas et al. The Efficacy of self-tapping and self-drilling Inter-Maxillary fixation Screw in maxillofacial surgery
Said Management of unfavorable displaced mandibular angle fracture with combined rigid and semi-rigid fixation using trans-oral and trans-buccal approaches. One year prospective clinical and radiographic study
Kübler et al. Orthognathic Surgery
Hagino et al. The fate of developing teeth in mandibular lengthening by distraction: an experimental study
Hollier Jr et al. Craniofacial distraction osteogenesis
Molina et al. Distraction of the mandible: the Mexico City experience
Iatrou et al. Distraction Osteogenesis in Maxillofacial Surgery
Takano et al. A case of Sotos syndrome treated with distraction osteogenesis in maxilla and mandible
Perrino Neonatal Mandibular Distraction
Aziz et al. Mandibular Osteotomies
Gaggl et al. Special Traumatology

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10806723

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 10806723

Country of ref document: EP

Kind code of ref document: A2